Influência da qualidade do sono na queda noturna da pressão arterial durante monitorização ambulatorial da pressão arterial / Influence of quality of sleep on the nocturnal decline in blood pressure during ambulatory blood pressure monitoring
Arq. bras. cardiol
; 78(2): 212-223, Feb. 2002. tab, graf
Article
in Pt, En
| LILACS
| ID: lil-303906
Responsible library:
BR1.1
RESUMO
OBJECTIVE:
To assess the influence of the quality of sleep on the nocturnal physiological drop in blood pressure during ambulatory blood pressure monitoring.METHODS:
We consecutively assessed ambulatory blood pressure monitoring, the degree of tolerance for the examination, and the quality of sleep in 168 patients with hypertension or with the suspected "white-coat" effect. Blood pressure fall during sleep associated with a specific questionnaire and an analogical visual scale of tolerance for ambulatory blood pressure monitoring were used to assess usual sleep and sleep on the day of examination. Two specialists in sleep disturbances classified the patients into 2 groups those with normal sleep and those with abnormal sleep.RESULTS:
Fifty-nine (35 percent) patients comprised the abnormal sleep group. Findings regarding the quality of sleep on the day of ambulatory blood pressure monitoring as compared with those regarding the quality of sleep on a usual day were different and were as follows, respectively total duration of sleep (-12.4±4.7 versus -42.2±14.9 minutes, P=0.02), latency of sleep (0.4±2.7 versus 17±5.1 minutes, P<0.001), number of awakenings (0.1±0.1 versus 1.35±0.3 times, P<0.001), and tolerance for ambulatory blood pressure monitoring (8±0.2 versus 6.7±0.35, P=0.035). An abnormal drop in blood pressure during sleep occurred in 20 (18 percent) patients in the normal sleep group and in 14 (24 percent) patients in the abnormal sleep group, P=0.53.CONCLUSION:
Ambulatory blood pressure monitoring causes sleep disturbances in some patients, and a positive association between quality of sleep and tolerance for the examination was observed
Full text:
1
Index:
LILACS
Main subject:
Sleep
/
Sleep Wake Disorders
/
Blood Pressure
/
Blood Pressure Monitoring, Ambulatory
Limits:
Female
/
Humans
/
Male
Language:
En
/
Pt
Journal:
Arq. bras. cardiol
Journal subject:
CARDIOLOGIA
Year:
2002
Type:
Article